Martin mbdaet



UNITED STATES PATENT OFFICE.

MARTIN MEDART, OF BELLEVILLE, ILLINOIS, ASSIGNOR OF ONE-THIRD TO PHILIPMEDART AND WILLIAM MEDART, OF ST. LOUIS, MO.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 278,033, dated May 22,1883. Application filed January 31, 1883. (No model.)

To all whom it may concern.-

Be it known thatI, MARTIN MEDART, acitizen of the United States, and aresident of Belleville, in the county of St. Clair and State ofIllinois, have invented certain new and useful Improvements inVehicle-Springs; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccom panying drawings, forming apart of this specification.

This invention relates to improvements in p that class of springs moreespecially adapted for road-wagons, buggies, carriages, 8m. and theobject of my improvement is to provide a 1 5 spring of acheap, simple,and durable'constrnction, possessing even flexibility to a markeddegree. I attain such object-by theconstruction illustrated in theaccompanyingdrawings, in which- Figure 1 is a detail side elevationillustrating my improved spring as applied to shortbodied vehicles. Fig.2 is a similar view, illustrating its application to long-bodiedvehicles. Fig. 3 is an end view,illnstrating its ap- 2 plication toside-bar vehicles; and Fig. 4 is a detail side elevation illustratingits application to carriages, stage-coaches, &c.

As shown in the drawings, my improved spring consists of one or moremain C-shaped 0 leaves, A, and a supplementary circular-shaped brace orstrengthening-leaf, B. The free end I) of this leaf may have a slidingmovement on the surface of the spring in the movement or springing ofthe same, as indicate in Figs. 1,

5 2, and 3, or extend around in a scroll, as indicatedinFig.4.Eitheri'nodemaybeemployed, as circumstances may dictate withoutdeparting from the spirit of my invention. The fixed end of thebrace-leaf B and the end of the 40 main leaf orleaves A are perforatedfor the passage of the bolts that secure the spring in place. The otherendof the leaf A is provided with the usual eye, a, for attachment to aswivel, by which connection ofsuch end is made to the vehicle body oraxle as may be found most desirable or convenient. I have illustratedthe spring as being fixedly secured to the vehicle-body in Figs. 1, 2,and 3, and to the axle in Fig. 4. Either mode may be used withoutdeparting from the spirit of my invention.

Theadvan tageous features possessed by my improved spring are asfollows: The leaves of the spring, being of much greater length thanthose in common use, possess greater elasticity, without liability tobreakage, the arrangement being such that the auxiliary or brace leaf Bacts. to stifi'en the spring, without interfering to any great extentwith an even springing of the same; and, further, the spring possessesthe same springing qualities under light or heavy loads.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. A brace for C-shaped vehicle-springs,con- 6 5 sisting of a flatattaching portion and a circular or scroll-shaped free portion b, asdescribed,

and for the purpose set forth.

2. A spring for vehicles, consisting of one or more main C-shapedleaves,A, and circular or scroll-shaped brace-leaf B, arranged insidethe main spring, and having bearing against the under side of same, asherein described, and for the purpose set forth. I

Witness my hand this25th day of January, 1883.

, MARTIN MEDART.

In presence of- PHILIP MEDART, EUGENE WOLF.

